SS316L Stainless Steel Spiral Wound Gaskets High-Quality QCR-Metal Face Fitting 1/8"-1" Bright Anneal/Electro Polishing
High Purity Face Seal Fitting SS QCR Gasket SS316L Metal Face Seal Fittings Stainless Steel High Purity Gasket
- Overview
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QiiMii metal face seal (QCR) fittings can be used as a high purity components in high vacuum or high pressure system. When the female and male nuts are tightened, the gasket is compressed by two highly polished circular flanges. The visual inspection and leak test are carried out through two ports at opposite positions to the internally threaded nut.
Surface Finishing
Surface Finishing |
Surface Roughness |
BA |
0.4-1.0μm |
EP |
0.13-0.25μm |
Temperature Rating
Material |
°F |
°C |
SS316L |
1000 |
538 |
Pressure Ratings
Tube O.D. |
Wall Thickness |
Pressure Rating |
|
Psi |
Bar |
||
1/8" |
0.028"(0.71mm) |
8550 |
590 |
1/4" |
0.035"(0.89mm) |
5200 |
359 |
3/8" |
0.035"(0.89mm) |
3350 |
231 |
1/2" |
0.049"(1.24mm) |
3750 |
259 |
3/4" |
0.065"(1.65mm) |
2400 |
165 |
1" |
0.065"(1.65mm) |
2400 |
165 |
Plating
Female nuts are silver plated for easy assembly,consistent make-up, prevention of galling and reduction of the torque required for fitting assembling.
Assembly Instruction
Step 1
Insert gasket into female nut and make sure the gasket is settled in proper position. Also make sure no damages on seal part while inserting.
Step 2
Turn female nut until it comes into contact with male nut. And make sure seal part and gasket are placed in proper position.
Step 3
Final tightening shall be completed by assembly tools such as tools such as two spanners. Tighten the female nut 1/8-1/6 turns with second spanner and make sure that components screwing except female nut could damage the seal part to reduce the seal capacity.
Step 4
Make sure seal part and gasket are placed in proper position.
Example

Short Grand QCR 1/2" xtube O.D. Size 1/4", weld tube length =19.1mm, SS316L and Electro Polishing
Gasket
*Material:SS316L

| Model | QCR Size Inch |
E/mm | D/mm | T/mm | N.W/g |
|---|---|---|---|---|---|
| FDGG012 | 1/8 | 2.3 | 6.6 | 0.7 | |
| FDGG014 | 1/4 | 5.6 | 11.9 | 0.7 | |
| FDGG018 | 1/2 | 11.2 | 19.8 | 0.7 | |
| FDGG0112 | 3/4 | 16.8 | 29 | 0.7 | |
| FDGG0116 | 1 | 22.6 | 35.6 | 0.7 |
About Us
Wenzhou QiMing Stainless Co., Ltd. was founded in 2015, located in Wenzhou city providing a wide range of stainless steel valves and fittings for food, dairy, beverage,cosmetic, wine industries, semiconductor, LCD,solar energy, lithium technology, photovoltaic and other high-tech industries. mainly manufacture and export SS valves and fittings including Butterfly Valve, Ball Valve, Check Valve, Angle Valve, Vacuum Valves, Tri Clamp Fittings, Weld Fittings,KF/NW flanges, ISO Flanges and CF Flanges. has Mazak CNC, Milling CNC, handheld spectrometer,helium mass spectrometer leak detection, roughness tester and others. With more than 10 years development, QiMing gets 3A certificate and ISO9001:2008. QiMing's main market is Europen, USA, Korea,Japan and so on.
QiMing Market
Our products are exported to many countries, including South Korea, the United States, the United Kingdom, ltaly, France, the Netherlands, Finland, Russia, Belarus, Thailand, CanadaMexico,
Australia, Germany, Spain, Malaysia, Singapore, Vietnam, Indonesia, India, thePhilippines, Japan, Paraguay, Brazil, Chile, Peru, and more.

QiMing Team
Our experienced engineers work closely with each customer to find out the best possible solutions.Our constant technical innovation combined with stringent quality control systems hasenabled us to deliver high performance and outstanding value in sanitary applications.We are dedicated to improving the performance and value of our products, services, and solutions to meet your requirements

Equipment & Testing
QiMing has advanced CNC machieries,CNC centers and Testing Equipment,ISO9000 Certificated and all raw materials are traceablethe ablethe

Certificate

Exhibition
Wenzhou Qiming Stainless Steel Co., Ltd. participated in the Japan Semiconductor Exhibition in November 2023, the Shenzhen Semiconductor Exhibition in June 2024, and the U.S. Semiconductor Exhibition in July 2024. In December 2024, the company attended the Japan Semiconductor Exhibition again and participated in the China Optoelectronics Expo during the same period. It will take part in the China Optoelectronics Expo in September 2025, the U.S. Semiconductor Exhibition in October 2025, and the Japan Semiconductor Exhibition in November 2025.

FAQ
Q: Why would I choose you?
Wenzhou QiMing Stainless Co., Ltd has been engaging in manufacturing sanitary valves, fittings, tank components and pumps for over
15 years, outstanding in production capacity, effective management, accurate lead time, on-time shipments and problems-solving
rate after sales.
Q: May I have free samples before ordering?
Yes, our company is very pleased to send you free samples for quality test as long as freight cost being paid by buyers
themselves.
Q: What's the MOQ?
The majority of products are fully in stock, so we accept 1 piece as the minimum order quantity.
Q: Does your company have the export license?
Yes, we have more than 4 years export experience, we can do FOB, C&F, CIF, DDU and DDP (Russian Only).
Q: What's the payment term?
For small testing orders, we accept Paypal, Western Union, T/T and Credit Card.
For mass orders, we accept T/T and L/C.
Q: How would you minimize damages during delivery?
Standard: mass orders will be packed by many carbon boxes and filled in plywood cases.
Available requirement: blister packing for every piece of product, plastic caps for clamp connected products.
Q: How would you choose the shipment way?
Basically, we will select shipment ways based on four factors (order quantity, delivery time, costs and customs policy), then list
couples of reasonable options with Pros and Cons to customers, letting them to decide.
